Answer:
The correct answer is letter "B": Undifferentiated marketing.
Step-by-step explanation:
Undifferentiated marketing is the advertising approach firms implement attempting to promote one method only to reach all sectors of the market. This opposes differentiated marketing which implies advertising according to the different market segments a company cover, something that provides customers a more specialized focus on the type of product or service they may be looking to acquire.
Using undifferentiated marketing a firm offers its goods at the same price, place, with the same customer experience and promotion for everybody.